鋼波紋涵管采(cai)用(yong)標準化(hua)設計、工(gong)(gong)(gong)廠加工(gong)(gong)(gong)生(sheng)產,生(sheng)產不受環(huan)境影響,進(jin)行(xing)集中工(gong)(gong)(gong)廠化(hua)生(sheng)產,生(sheng)產周期短(duan),實(shi)用(yong)于(yu)(yu)質量要求高,工(gong)(gong)(gong)期緊,基礎差的(de)(de)(de)工(gong)(gong)(gong)程項(xiang)目(mu)。鋼(gang)波(bo)紋(wen)涵(han)管施(shi)工(gong)(gong)(gong)中只需要對基礎進(jin)行(xing)砂礫回填處理(li),對進(jin)出口進(jin)行(xing)混凝土(tu)或砌石施(shi)工(gong)(gong)(gong)處理(li),對砂、石材、鋼(gang)筋(jin)等用(yong)量小,非常(chang)實(shi)用(yong)于(yu)(yu)砂石缺乏的(de)(de)(de)地區。鋼(gang)波(bo)紋(wen)涵(han)管在出廠前應(ying)嚴(yan)格按鋼(gang)質波(bo)紋(wen)板加工(gong)(gong)(gong)驗收標準進(jin)行(xing)驗收,并進(jin)行(xing)必要的(de)(de)(de)預(yu)拼裝。鋼(gang)波(bo)紋(wen)涵(han)管施(shi)工(gong)(gong)(gong)時對周圍環(huan)境的(de)(de)(de)破壞(huai)小,適用(yong)于(yu)(yu)生(sheng)態環(huan)境脆(cui)弱(ruo)的(de)(de)(de)地區。
橋梁鋼波紋(wen)涵管對周圍(wei)生態環境如(ru)何進行保(bao)護?
鋼(gang)波(bo)(bo)(bo)紋管涵洞技術不僅(jin)具有(you)施(shi)工周期短(duan)、適應能(neng)力(li)強(qiang)、地基(ji)承(cheng)載力(li)要求低的特點,而且具有(you)較強(qiang)的耐性,可以(yi)大大減(jian)少施(shi)工的時間,因而這種(zhong)技術被運用(yong)。必(bi)須(xu)采用(yong)有(you)效措(cuo)施(shi),確保(bao)(bao)鋼(gang)波(bo)(bo)(bo)紋管回填土質量。鋼(gang)波(bo)(bo)(bo)紋涵管在安裝時,拼接(jie)處必(bi)須(xu)清理干凈。以(yi)確保(bao)(bao)拼縫搭接(jie)緊(jin)密。
鋼(gang)波紋管涵(han)具有施工工期短、重量輕、安裝方便、耐(nai)久性能(neng)好、工程造價低、抗變形能(neng)力強(qiang)、減少養護費(fei)用成本(ben)等優點。鋼(gang)波紋涵(han)管使用范圍:基本(ben)要(yao)求:高(gao)強(qiang)螺栓(shuan)緊固后,在二(er)次防腐處理前,應在搭(da)接處用密封(feng)防水材料(或熱(re)瀝青)涂裝。
拼接波紋(wen)管涵
具有(you)(you)較(jiao)大的(de)抗變形能力和(he)(he)抗沉降能力,特別適(shi)合于軟土(tu)、膨脹土(tu)、濕陷性黃土(tu)等(deng)地(di)(di)基承載力較(jiao)低的(de)地(di)(di)區和(he)(he)地(di)(di)震多發(fa)地(di)(di)區。鋼(gang)質(zhi)波紋板通道現場拼裝(zhuang),必須嚴格。按(an)設計(ji)以(yi)及鋼(gang)質(zhi)波紋板通道施工(gong)(gong)安裝(zhuang)規范的(de)要(yao)求施工(gong)(gong)。鋼(gang)波紋涵(han)管作為一種(zhong)新型(xing)技術(shu)在公路涵(han)洞工(gong)(gong)程施工(gong)(gong)中的(de)具有(you)(you)很大的(de)優勢。
基礎的地基承載力必須滿(man)足沒計(ji)要(yao)求,嚴(yan)禁超(chao)挖(wa)回填虛(xu)土超(chao)過以(yi)及標高(gao)控(kong)制。波(bo)紋(wen)鋼板安裝鋪設應(ying)平順、穩固、管底坡度不得(de)出現反(fan)坡,管涵(han)內(nei)不得(de)有(you)泥土、磚石(shi)等雜物。鋼波(bo)紋(wen)涵(han)管是(shi)一種柔(rou)性(xing)結(jie)構,波(bo)紋(wen)管涵(han)在結(jie)構上具有(you)橫向補償(chang)位移的優良特(te)性(xing),可以(yi)充分發揮鋼材抗(kang)(kang)拉性(xing)能強、抗(kang)(kang)變形(xing)能力優越的特(te)點(dian)。
鋼(gang)波(bo)(bo)紋(wen)(wen)涵(han)(han)管(guan)(guan)的(de)(de)優(you)點:鋼(gang)波(bo)(bo)紋(wen)(wen)涵(han)(han)管(guan)(guan)單(dan)體出廠(chang)時,必須附有產(chan)品質(zhi)量合格證書(shu),沒有合格證書(shu)的(de)(de)一律不能出廠(chang)。鋼(gang)波(bo)(bo)紋(wen)(wen)涵(han)(han)管(guan)(guan)從材(cai)料與結構和功能的(de)(de)本質(zhi)關系上分(fen)析,采用柔性高強度的(de)(de)鋼(gang)波(bo)(bo)紋(wen)(wen)管(guan)(guan)涵(han)(han)洞由于軸(zhou)向(xiang)波(bo)(bo)紋(wen)(wen)的(de)(de)存在,使(shi)其(qi)具有優(you)良的(de)(de)受力特征,軸(zhou)向(xiang)和徑向(xiang)同時分(fen)布因荷(he)載(zai)引起的(de)(de)應力應變,可以更(geng)大(da)程度上分(fen)散荷(he)載(zai)的(de)(de)應力集中,更(geng)好(hao)地(di)發揮鋼(gang)結構的(de)(de)優(you)勢。
由于鋼(gang)(gang)波紋涵(han)(han)管施工簡單(dan)且施工工期短(duan)(一(yi)般一(yi)道涵(han)(han)洞的施工時間(jian)大約在10天(tian)-15天(tian)左(zuo)右(you))縮短(duan)了多(duo)年凍(dong)土(tu)的裸露時間(jian),凍(dong)融量小(xiao),故特別適用于多(duo)年凍(dong)土(tu)地區。鋼(gang)(gang)波紋涵(han)(han)管運到(dao)施工現場后,必須逐塊檢查(cha),凡在運輸過程中變形的鋼(gang)(gang)板不得使(shi)用。(hanihanbj.com)
分享此文章: |